Cometic Chevrolet Mark-IV Big Block V8 4.540in Bore .040in MLS Cylinder Head Gasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. Chevrolet Mark-IV Big Block V8 .040in. MLS Cylinder Head Gasket; 4.540in. Bore

• The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes
• The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
• Requires less clamp load creating less bore distortion
• Conforms load distribution across the sealing area
• Embossed Outer Layers Coated w/Viton

The Cometic Gasket Chevrolet Mark-IV Big Block V8 .040 Inch MLS Cylinder Head Gasket is engineered to deliver exceptional sealing performance for high-output engines. Crafted with multiple embossed layers of stainless steel, this gasket features outer layers coated with Viton rubber, providing heat resistance up to 482°F. The compressed operating thickness of 0.040 inches ensures a precise fit for engines with a bore diameter of 4.540 inches, making it suitable for demanding performance applications. Its multilayer design allows it to withstand the shearing forces generated between aluminum heads and cast iron blocks, preventing leaks under extreme conditions. The stainless steel center or shim layer can be customized to meet specific thickness requirements, offering versatility for various engine setups.

Features:

• Embossed outer layers coated with Viton rubber for enhanced durability and heat resistance

• Multi-layer steel construction provides maximum sealing strength and resilience

• Uncoated stainless steel center layer allows for customizable thickness adjustments

• Requires less clamp load, reducing bore distortion and promoting even load distribution

• Ideal for aluminum heads to aluminum blocks and aluminum heads to cast iron blocks